Armchair



FIG. 1 is a top and right front perspective view of an armchair showing my design;

FIG. 2 is a right side elevational view thereof, the left side elevational view being a mirror image of the side view shown; and,

FIG. 3 is a right side elevational view thereof showing the armchair when in a reclining position, the left side view thereof being a mirror image of the side view shown. 

The ornamental design for an armchair, as shown and described. 